💾Node Installation

Juno Testnet guide

  • Minimum hardware requirements:

Node TypeCPURAMStorage

Testnet

8

16GB

250GB

1) Auto_install script

wget -O juno-t https://raw.githubusercontent.com/111STAVR111/props/main/Juno/Testnet/juno-t && chmod +x juno-t && ./juno-t

2) Manual installation

Preparing the server

sudo apt update && sudo apt upgrade -y
sudo apt install curl tar wget clang pkg-config libssl-dev jq build-essential bsdmainutils git make ncdu gcc git jq chrony liblz4-tool -y

GO 1.21.6

ver="1.21.6"
wget "https://golang.org/dl/go$ver.linux-amd64.tar.gz"
sudo rm -rf /usr/local/go
sudo tar -C /usr/local -xzf "go$ver.linux-amd64.tar.gz"
rm "go$ver.linux-amd64.tar.gz"
echo "export PATH=$PATH:/usr/local/go/bin:$HOME/go/bin" >> $HOME/.bash_profile
source $HOME/.bash_profile
go version

Build 10.07.24

cd $HOME && mkdir $HOME/go/bin/
git clone https://github.com/CosmosContracts/juno juno
cd juno
git checkout v23.0.0-alpha.1
make install

junod version --long | grep -e version -e commit

  • version: v23.0.0-alpha.1

  • commit: bf140aa60045ba92b83d0cb7f3bc47a2661a4e7e

Initiation

junod init STAVR_guide --chain-id=uni-6
junod config chain-id uni-6

Create/recover wallet

junod keys add <walletname>
           OR
junod keys add <walletname> --recover

Download Genesis

wget -O $HOME/.juno/config/genesis.json "https://raw.githubusercontent.com/111STAVR111/props/main/Juno/Testnet/genesis.json"

sha256sum $HOME/.juno/config/genesis.json

  • 4c90e8bfce9b7fab824b923cbb7bdddf276f1040f3651fdb5304a4289147ea90

Set up the minimum gas price and Peers/Seeds/Filter peers/MaxPeers

sed -i.bak -e "s/^minimum-gas-prices *=.*/minimum-gas-prices = \"0ibc/C4CFF46FD6DE35CA4CF4CE031E643C8FDC9BA4B99AE598E9B0ED98FE3A2319F9,0ujuno\"/;" ~/.juno/config/app.toml
sed -i -e "s/^filter_peers *=.*/filter_peers = \"true\"/" $HOME/.juno/config/config.toml
external_address=$(wget -qO- eth0.me) 
sed -i.bak -e "s/^external_address *=.*/external_address = \"$external_address:26656\"/" $HOME/.juno/config/config.toml
peers=""
sed -i.bak -e "s/^persistent_peers *=.*/persistent_peers = \"$peers\"/" $HOME/.juno/config/config.toml
seeds=""
sed -i.bak -e "s/^seeds =.*/seeds = \"$seeds\"/" $HOME/.juno/config/config.toml
sed -i 's/max_num_inbound_peers =.*/max_num_inbound_peers = 50/g' $HOME/.juno/config/config.toml
sed -i 's/max_num_outbound_peers =.*/max_num_outbound_peers = 50/g' $HOME/.juno/config/config.toml

Pruning (optional)

pruning="custom"
pruning_keep_recent="1000"
pruning_keep_every="0"
pruning_interval="10"
sed -i -e "s/^pruning *=.*/pruning = \"$pruning\"/" $HOME/.juno/config/app.toml
sed -i -e "s/^pruning-keep-recent *=.*/pruning-keep-recent = \"$pruning_keep_recent\"/" $HOME/.juno/config/app.toml
sed -i -e "s/^pruning-keep-every *=.*/pruning-keep-every = \"$pruning_keep_every\"/" $HOME/.juno/config/app.toml
sed -i -e "s/^pruning-interval *=.*/pruning-interval = \"$pruning_interval\"/" $HOME/.juno/config/app.toml

Indexer (optional)

indexer="null" &&
sed -i -e "s/^indexer *=.*/indexer = \"$indexer\"/" $HOME/.juno/config/config.toml

Download addrbook

wget -O $HOME/.juno/config/addrbook.json "https://raw.githubusercontent.com/111STAVR111/props/main/Juno/Testnet/addrbook.json"

Create a service file

sudo tee /etc/systemd/system/junod.service > /dev/null <<EOF
[Unit]
Description=juno Testnet
After=network-online.target

[Service]
User=$USER
ExecStart=$(which junod) start
Restart=on-failure
RestartSec=3
LimitNOFILE=65535

[Install]
WantedBy=multi-user.target
EOF

StateSync juno Testnet (Temporarily stopped)

SNAP_RPC=https://juno.rpc.t.stavr.tech:443
PEERS="a3c23d4c7e33679badc778911ad420c59de13c25@junot.peer.stavr.tech:1166"
sed -i.bak -e "s/^seeds *=.*/seeds = \"$SEEDS\"/; s/^persistent_peers *=.*/persistent_peers = \"$PEERS\"/" $HOME/.juno/config/config.toml
LATEST_HEIGHT=$(curl -s $SNAP_RPC/block | jq -r .result.block.header.height); \
BLOCK_HEIGHT=$((LATEST_HEIGHT - 1000)); \
TRUST_HASH=$(curl -s "$SNAP_RPC/block?height=$BLOCK_HEIGHT" | jq -r .result.block_id.hash)
echo $LATEST_HEIGHT $BLOCK_HEIGHT $TRUST_HASH

sed -i.bak -E "s|^(enable[[:space:]]+=[[:space:]]+).*$|\1true| ; \
s|^(rpc_servers[[:space:]]+=[[:space:]]+).*$|\1\"$SNAP_RPC,$SNAP_RPC\"| ; \
s|^(trust_height[[:space:]]+=[[:space:]]+).*$|\1$BLOCK_HEIGHT| ; \
s|^(trust_hash[[:space:]]+=[[:space:]]+).*$|\1\"$TRUST_HASH\"| ; \
s|^(seeds[[:space:]]+=[[:space:]]+).*$|\1\"\"|" $HOME/.juno/config/config.toml
junod tendermint unsafe-reset-all --home $HOME/.juno
sed -i -e "s/^snapshot-interval *=.*/snapshot-interval = \"1500\"/" $HOME/.juno/config/app.toml
curl -o - -L http://juno-t.wasm.stavr.tech:1021/wasm-junot.tar.lz4 | lz4 -c -d - | tar -x -C $HOME/.juno/ --strip-components 2
wget -O $HOME/.juno/config/addrbook.json "https://raw.githubusercontent.com/111STAVR111/props/main/Juno/Testnet/addrbook.json"
sudo systemctl restart junod && journalctl -u junod -f -o cat

SnapShot Testnet updated every 5 hours (Temporarily stopped)

cd $HOME
snap install lz4
sudo systemctl stop junod
cp $HOME/.juno/data/priv_validator_state.json $HOME/.juno/priv_validator_state.json.backup
rm -rf $HOME/.juno/data
curl -o - -L http://junot.snapshot.stavr.tech:1030/junot/junot-snap.tar.lz4 | lz4 -c -d - | tar -x -C $HOME/.juno --strip-components 2
curl -o - -L http://juno-t.wasm.stavr.tech:1021/wasm-junot.tar.lz4 | lz4 -c -d - | tar -x -C $HOME/.juno/ --strip-components 2
mv $HOME/.juno/priv_validator_state.json.backup $HOME/.juno/data/priv_validator_state.json
wget -O $HOME/.juno/config/addrbook.json "https://raw.githubusercontent.com/111STAVR111/props/main/Juno/Testnet/addrbook.json"
sudo systemctl restart junod && journalctl -u junod -f -o cat

Start

sudo systemctl daemon-reload
sudo systemctl enable junod 
sudo systemctl restart junod && sudo journalctl -fu junod -o cat

Create validator

junod tx staking create-validator \
--commission-rate 0.1 \
--commission-max-rate 0.1 \
--commission-max-change-rate 0.1 \
--min-self-delegation "1" \
--amount 1000000ujuno \
--pubkey $(junod tendermint show-validator) \
--from <wallet> \
--moniker="STAVR_guide" \
--chain-id uni-6 \
--gas 350000 \
--identity="" \
--website="" \
--details="" -y

Delete node

sudo systemctl stop junod
sudo systemctl disable junod
rm /etc/systemd/system/junod.service
sudo systemctl daemon-reload
cd $HOME
rm -rf juno
rm -rf .juno
rm -rf $(which junod)

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